/******************************************************************************
 * Copyright (C) 2015  671643387@qq.com
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 *****************************************************************************/

#ifndef SHARED_DB_SQLDELAYTHREAD_H_
#define SHARED_DB_SQLDELAYTHREAD_H_

#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif

#include "Shared/Global_Macros.h"
#include "Shared/Base/Runnable.h"
#include "Shared/Base/Thread.h"
#include "Shared/Base/Mutex.h"
#include "Shared/Util/LockedQueue.h"

namespace Shared {
namespace DB {
    class Database;
    class SqlOperation;
    class SqlConnection;

    class SqlDelayThread: public Runnable
    {
        typedef Util::LockedQueue<SqlOperation*, Mutex> SqlQueue;

    public:
        SqlDelayThread(Database* db, SqlConnection* conn);
        virtual ~SqlDelayThread(void);

        bool start(void);
        void stop(void);

        bool delay(SqlOperation* sql) { _sqlQueue.add(sql); return true; }

    protected:
        virtual void run(void);

    private:
        void processRequests(void); 

        SqlQueue _sqlQueue;
        Database* _db;
        SqlConnection* _conn;
        volatile bool _running;
        Thread _thread;
    };

}}

#endif // SHARED_DB_SQLDELAYTHREAD_H_
